Cop holder



Aug. 3l, 1948. R v OLSON ETAL 2,448,457

^ coP HOLDER Filed sept. 1, 1945 ATTO NEVYS Patented Aug. 31, 1948 corHOLDERV Robert V. Olson and BrorA. Johnson, Attleboro,

Mass., assignors to Mossberg Pressed Steel Corporation, a corporation ofMassachusetts Application September 1, 1945, Serial No. 614,004

Claims. (Cl. 242-121) This invention relates to a cop holder for abraiding machine.

In the use of cop holders such as shown in Patent No. 1,828,337, it hasbeen found, with the increased tensions on yarns which are now beingapplied by the machines in which cop holders are used, that a strongerresistance to turning of the cop on the holders must be provided for. Inthe use of resilient arms or ribs, such as shown in the above-mentionedpatent, in some instances it has been found that a permanent set occursin the center of the ribs or arms which interferes with and reduces theholding power on a cop. It has also been found in a cop holder such asshown in the above-mentioned patent that crystallization of the centertube will occur where it extends through the base or head, especiallywhere increased tensions are used and resistances to them are providedfor.

One of the objects of this invention is to provide a cop holder whichwill overcome the above diiculties indicated.

Another object of this invention is to provide a cop holder in which nocrystallization will occur of the center tube at its junction with thebase or head.

Another object of this invention is to provide a greater stiffness inthe resilient arms.

Another object of this invention is to provide resilient arms which willnot become permanently set in their center due to use.

Another object oi this invention is to provide a cop holder with whichstronger yarn tensions may be used and yet one which will withstand suchstrains as are existant in the use of yarns in a braider at the presenttime.

With these and other objects in view, the invention consists of certainnovel features of construction, as will be more fully described andparticularly pointed out in the appended claims.

In the accompanying drawings:

Fig. 1 is an elevation of the improved cop holder;

Fig. 2 is a central sectional view thereof;

Fig. 3 is a bottom plan view;

Fig. 4 is a section on line 4--4 of Fig. 1; and

Fig. 5 is a view similar to Fig. 4 but showing a modified construction.

In proceeding with this invention, we provide two central tubes, onetelescoped Within the other, and extend both of these tubes through thecentral opening in the base or head of the cop holder, and secure themIin place therein by welding or other suitable means. The outer tube hasarms which are arched outwardly and each is generally U-shaped in crosssection. In order to stiften these arms, we place iianges along theedges of the arm which serve to so stiffen these arms that they do notbecome set in use.

With reference to the drawings, I5 designates generally the base or headof the cop holder, which is provided with a plurality of ratchet teethII, cut out and bent into place or cast integral with the plate I2. Acollar I3 is provided at the center of the plate I2 surrounding anopening I4 which is formed centrally of the head or base. Two centertubes I5 and I6 are provided, one telescoping the other. These tubesmay' be either seamless tubes or may be rolled up from sheet stockforming a seam and welded together. Or one tube may be seamless and theother seamed, optionally.

The inner tube I5 is a straight tube which is uniform throughout itslength. The outer tube I5 is formed with longitudinally arched arms orribs bent outwardly therefrom and each rib is U-shaped in cross sectionas shown at I8 in Fig. 4. The edges of each of these arms or ribs II areprovided with anges I9 extending laterally therefrom which serve thepurpose of stiffening each of these arms or ribs which, by reason oftheir length and being bent outwardly, are resilient. It is found thatthis flange will prevent the ribs from taking an inward set which inmany instances becomes permanent where these flanges are absent. Theribs of the outer tube I5 commence at a point 2D spaced from the upperend and terminate at a point 2I spaced from the lower end. The two endportions 22 and 24 from the point of joining of the ribs to the ends ofthe tube I6 are of band form. The end portion 22 is secured to the endportion of the inner tube I5 by welding, such for instance as spotwelding as at 23, while the lower portion 24 of the tube I5 is securedto the lower portion of the tube I5 by welding, such for instance as byspot welding 25. Any welding, brazing. or fusing together of the parts,however, is satisfactory, and the spot welding is here shown by way ofexample only.

Both tubes I5 and I6 extend through the central opening I4 and both areared over as at 25, or they may be staked over, to lock them in place inthe central opening. This locking may occur in any suitable manner, andI also weld or braze the portion which extends through the opening I4 tothe collar I3 so that the center tubes will be firmly Xed in place.

A tube constructed as set forth above is found to provide ribs or armswhich will not become permanently set in use, and by reason of bothcenter tubes extending through the central opening of the base and beingxed thereto, we nd that even though greater tension on the yarn isexerted, crystallization of the center tube at the point of its junctionWith the base or head is avoided.

In some cases instead of having four ribs formed by the outer tube Wemay have three Where the gripping of: the copis to be varied? as shownin Fig. 5.

We claim:

1. A cop holder comprising a ratchet base hav'- ing a central openingtherein, a pair of center tubes with one telescoping the other, and bothextending through said central openingT and inv contact at their endportionsl and secured;A together.

2. A cop holder as set forth, nclaimt 1: wherein the outer tube hasoutwardly extending bowed` arms to resiliently grip a cop.

3. A cop holder comprisinga ratchet base havingacentralf openingtherein, a tube insad central opening and a second tube telescoping overthe first tube and provided with resilient arms in longitudinally archedrelation to said center tube and each U-shaped in cross section with aflange along an edge thereof.

4. A cop holder as set forth in claim 3 wherein both edges of theU-shaped cross sections are langedi 5. A cop holder as set forthA in"claim 3 wherein both tubes extend through said central opening.

ROBERT V. OLSON. BRORl A. JOHNSON.

REFERENCES CITED Thefllowng. references are of record in the le of thispatent:

UNITED STATES PATENTS Number Name Date 1,423,824 Adell et a1 July 2,5,1922 828,337 Mossberg Oct. 20;- 1931

